Heex formatter - a Formatter for Heex templates

Welcome @feliperenan !!!
I have been very vocal about this library here already. Formatter for HEEx templates - #12 by cvkmohan

Friends, this library made my vscode setup leaner ( I was using beautify and more extensions earlier.) and @feliperenan has been very responsive to attend to my queries. A big applause.

Im testing this in a new phoenix app and when I try

mix format lib/test_crm_web/live/customer_live/index.html.heex

I get the error:

lib/test_crm_web/live/customer_live/index.html.heex:1:1: syntax error before: '<'

I have done nothing else than generated a live resource. Is there anything I missed?

What is your Elixir and Phoenix.LiveView versions? Do you also have a full stacktrace? I am wondering if it is trying to run the Elixir formatter on that .heex file.

I was trying to run it on that heex file.
LiveView 0.17.6
Elixir 1.12.1

mix format failed for file: lib/test_crm_web/live/customer_live/index.html.heex
** (SyntaxError) lib/test_crm_web/live/customer_live/index.html.heex:1:1: syntax error before: '<'
    (elixir 1.12.1) lib/code.ex:978: Code.format_string!/2
    (mix 1.12.1) lib/mix/tasks/format.ex:418: Mix.Tasks.Format.format_file/2
    (elixir 1.12.1) lib/task/supervised.ex:90: Task.Supervised.invoke_mfa/2
    (elixir 1.12.1) lib/task/supervised.ex:35: Task.Supervised.reply/5
    (stdlib 3.13.2) proc_lib.erl:226: :proc_lib.init_p_do_apply/3

You need at least Elixir v1.13! You should even get a warning printed by using an earlier version.

I’m not sure if that works on Elixir 1.12 since format plugins are a thing only after Elixir 1.13. Please, try to update your Elixir and let us know If you have any other issues, it would be nice if you could share the template you are trying to format in case you are still facing issues .

All good. It works after updating elixir version.

Seems to depend on LiveViews master, instead of a versioned release? Or is this my configuration at fault?

  #mix.exs
  {:phoenix_live_view, "~> 0.17"},
  {:heex_formatter, github: "feliperenan/heex_formatter", only: [:dev]}

λ mix deps.get
* Getting heex_formatter (https://github.com/feliperenan/heex_formatter.git)
remote: Enumerating objects: 492, done.
remote: Counting objects: 100% (492/492), done.
remote: Compressing objects: 100% (254/254), done.
remote: Total 492 (delta 207), reused 485 (delta 200), pack-reused 0
origin/HEAD set to main
Dependencies have diverged:
* phoenix_live_view (Hex package)
  the dependency phoenix_live_view in mix.exs is overriding a child dependency:

  > In mix.exs:
    {:phoenix_live_view, "~> 0.17", [env: :prod, repo: "hexpm", hex: "phoenix_live_view"]}

  > In deps/heex_formatter/mix.exs:
    {:phoenix_live_view, [only: [:dev], env: :prod, git: "https://github.com/phoenixframework/phoenix_live_view.git"]}

  Ensure they match or specify one of the above in your deps and set "override: true"
** (Mix) Can't continue due to errors on dependencies

Rather not mark LV with override, but I get that this is pre-release.

Yes. At the moment heex formatter depends on live view master and I’m afraid you have to use override:true in your mix.exs.

For anyone following this thread, heex formatter no longer relies on live view master. Instead as of Update mix.exs by cvkmohan · Pull Request #52 · feliperenan/heex_formatter · GitHub it relies on liveview 0.17.7 or higher.